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Quantitative reconstruction of precipitation changes in the Mongolian Altai Mountains since 13.7 ka

文献类型：期刊论文

作者Hu, Yu5; Huang, Xiaozhong5; Demberel, Otgonbayar6; Zhang, Jun5; Xiang, Lixiong5; Gundegmaa, Vanjil1; Huang, Chong5; Zheng, Min5; Zhang, Jiawu5; Qiang, Mingrui2
刊名CATENA
出版日期2024
卷号234页码:13
ISSN号0341-8162
关键词Tolbo Lake Pollen analysis Mean annual precipitation Mongolian Altai Mountains
DOI10.1016/j.catena.2023.107536
英文摘要Holocene climate changes in the Altai Mountains and the surrounding areas are well documented, but the timing of the Holocene precipitation maximum remains controversial. We obtained 17 accelerator mass spectrometry (AMS) C-14 dates and 310 fossil pollen assemblages from sediments in Tolbo Lake, which we used to reconstruct the history of vegetation and climate change in the Mongolian Altai Mountains over the past 13,750 years. The results suggest that mean annual precipitation (P-ann) was the most significant control on the fossil pollen record at the study site. Based on the fossil pollen record from Tolbo Lake and 469 surface pollen samples within the radius of 1300 km, the reconstructed P-ann was lowest during 13.7-11.3 ka (1 ka = 1,000 cal yr BP); relatively low but increasing P-ann occurred in the early Holocene (11.3-9.4 ka); and maximum P-ann occurred during the middle to late Holocene (after 6.8 ka), possibly because of the high temperatures. A significant climatic and ecological transition occurred in the Altai Mountains at similar to 7 ka: steppe and desert steppe vegetation with generally low P-ann was present before similar to 7 ka, while subsequently there was the expansion of forest vegetation and a marked increase in P-ann, possibly in response to the minimum in Northern Hemisphere ice sheets and the increased radiative forcing caused by rising atmospheric greenhouse gases.
WOS关键词ARID CENTRAL-ASIA ; HOLOCENE MOISTURE EVOLUTION ; CLIMATE CALIBRATION-SET ; VEGETATION CHANGES ; ENVIRONMENTAL-CHANGES ; NORTHERN XINJIANG ; SURROUNDING AREAS ; WESTERN MONGOLIA ; POLLEN RECORDS ; DIATOM RECORDS
资助项目National Key Research and Development Program of China[2017YFA0603402] ; Fundamental Research Funds for the Central Universities[lzujbky-2022-pd06]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:001086727700001
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/110707]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Huang, Xiaozhong
作者单位1.Mongolian Natl Univ Educ, Sch Math & Nat Sci, Dept Biol, Ulaanbaatar 210648, Mongolia
2.South China Normal Univ, Sch Geog, Guangzhou, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, CAS Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Alpine Paleoecol & Human Adaptat Grp ALPHA, Beijing 100101, Peoples R China
5.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
6.Natl Univ Mongolia, Khovd Branch Sch, Khovd 84000, Mongolia
推荐引用方式
GB/T 7714		 Hu, Yu,Huang, Xiaozhong,Demberel, Otgonbayar,et al. Quantitative reconstruction of precipitation changes in the Mongolian Altai Mountains since 13.7 ka[J]. CATENA,2024,234:13.
APA Hu, Yu.,Huang, Xiaozhong.,Demberel, Otgonbayar.,Zhang, Jun.,Xiang, Lixiong.,...&Chen, Fahu.(2024).Quantitative reconstruction of precipitation changes in the Mongolian Altai Mountains since 13.7 ka.CATENA,234,13.
MLA Hu, Yu,et al."Quantitative reconstruction of precipitation changes in the Mongolian Altai Mountains since 13.7 ka".CATENA 234(2024):13.

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来源：地质与地球物理研究所

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